Science

Tuesday, 18 August 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Earth
The Earth's core is a ball with a diameter of 6940 km - so it is larger than Mars.
It is made of an alloy of nickel and iron with small admixtures of other elements. It reaches temperatures from 5500 to 6500 degrees Celsius and the pressure there is 13.5 million atmospheres.
Cosmos
The largest mountain in the Solar System is Olympus Mons.
This extinct volcano rises above the Martian surface to a height of about level. The diameter of the ...
Graphene
Graphene has unique “heating” properties.
This property is used in an innovative method of pain treatment (local heating of tissues to a tempe ...
Brain
It consists of 75% water.
This is primarily why proper hydration of the body is so important - dehydration disrupts the brain’s work.
Amber
Amber is associated with good luck and protection.
In some cultures, amber necklaces are gifted as good luck charms, to newborn babies to protect them from diseases, or as a marriage gift that represents eternal love.
Earth
According to analyses, the Earth will be able to support life for another 0.5 to 2.3 billion years.
As hydrogen deposits in the solar core decrease, the star's brightness is expected to increase. In j ...
Ganymede
Probably in 365 BC, the Chinese astronomer Gan De managed to observe Ganymede with the naked eye.
Aurora
The aurora is an inseparable element of the polar regions.
It occurs in high latitudes, mainly beyond the Arctic Circle. It also happens, however, that under favorable conditions, it can be observed around the 50th parallel.
Moon
The diameter of the Moon is 3474 km, which means it is approximately 1/4 of the diameter of the Earth.
Large Magellanic Cloud
It is located in the constellation of Dorado and Mensa.